MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
SHA3-384 hash: 3be96ba13970614233d364077c9e0b43ea0bc77facbb699f4ab8f2dbbd54efbb5743d299b8a43a4c9bc6cf623cf354f4
SHA1 hash: 4b7bcd2c3246f98be32330a20892a28e998e4b19
MD5 hash: 08a71f36822c8207f16013ed296ff269
humanhash: may-mobile-angel-lamp
File name:Salary_Receipt.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'368'064 bytes
First seen:2024-11-22 19:23:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:1AHnh+eWsN3skA4RV1Hom2KXMmHaO6GGVDL/8CMbyHa9AoodgPWo5:kh+ZkldoPK8YaO6GGx/tMbyzgPp
Threatray 611 similar samples on MalwareBazaar
TLSH T17F55CF82B3D18031FFAA92735B66BB25567F7D699433851F12883C74BDB11B2123E623
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 3121595959496961 (2 x Formbook)
Reporter Brad_malware
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
472
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Salary_Receipt.tbz
Verdict:
Suspicious activity
Analysis date:
2024-11-22 14:58:09 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/0a265ade-86f8-44a1-a58d-0e24f9002a23

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.8457.25636.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6740db22b31374f098338d6c
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script control extrac32 fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed packed packer_detected wuauclt
Link:
https://www.filescan.io/uploads/6740da538d2018acf26395be/reports/4a3fe7c8-d914-4790-9cc4-c48ee8b1bb7f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b11b2672-36c9-46f0-9ede-f68717cfaa02
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1561150
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-11-22 08:31:31 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aa5vpcqvi6p2ywfnuywvxoidcawt2mit6uym4pcrzuimfd2htbua._file
Verdict:
malicious
Label(s):
unknown_loader_036
Create hunting rule
formbook
Create hunting rule
Similar samples:
003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
Formbook
1f612fdff45d9b4f55df0493cd8f75e419f9c9bec9339c5548dfde799754590a
Formbook
79e31e087939f413301f214a422c46f9d32ed435fc34822611cb08a74266ba44
Formbook
ade930428485f335d9ab8526b0073be5cdf902c7316bf24bf86c69c85ed67d7e
Formbook
af38529f4fb8ac8bac4292c9f1ddc302cc48d26441de843ac670e0e77954ec7a
Formbook
bcc5a9772d5c0d2a0db971eff31f5a0e6feccdd6cb8defccbea6f00b5967cf38
Formbook
e9e614a16e3250dc0fdd6fd01247ab76f65d146466c5977b06ffb716d7438cae
Formbook
error
Formbook
+ 601 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241122-x4cntsxjat/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/933ffdc8-575b-4b2a-aa39-2a99a13081da
Unpacked files
SH256 hash:
c8ba4341f1d88ba0a4ebe6ad905d208a79ec350361ab71e0e4f484d38b585956
MD5 hash:
d50a21af5c76f769b8b31ec620f2c06e
SHA1 hash:
0d2cc6f56326e3dfe490149862353c496569f111
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e552d7b3-ef8f-4046-961f-4e7405bbef91/
Parent samples :
003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
1a552c79d04a85244459405c8a41c16c1febe837cf71fd1ead40365941a6f14a
79258013c3d545634e124d515e72b67831fb668175d71f73da58dcaa74cff137
919e47baabe9cc5fe28aa098991efc624b4cfe2c4008ce036a35b49edc438a4d
SH256 hash:
e50a7e84e32dae425745ef9cb2c66e7ebe04b544c59e613610779b89c962853c
MD5 hash:
ae89585b93b64eb081ada1f9c5f54e52
SHA1 hash:
dbf6d68a2e1f694b75c08cab0932c442966692e2
Link:
https://www.unpac.me/results/e552d7b3-ef8f-4046-961f-4e7405bbef91/
SH256 hash:
0a52361c3b9d04560d0ba44625975cc7accec15a0070bd85de92e88fc325b682
MD5 hash:
eef2a4ee1409992bdb45e6e137e8947c
SHA1 hash:
52a295a4449a2a1ce444b5a0ed0d37ae7da973ce
Link:
https://www.unpac.me/results/e552d7b3-ef8f-4046-961f-4e7405bbef91/
SH256 hash:
003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868
MD5 hash:
08a71f36822c8207f16013ed296ff269
SHA1 hash:
4b7bcd2c3246f98be32330a20892a28e998e4b19
Link:
https://www.unpac.me/results/e552d7b3-ef8f-4046-961f-4e7405bbef91/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/003b578a1547/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 003b578a15479fac58ada62d5bb903102d3d3113f530ce3c51cd10c28f479868

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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